-Durable steel case- Constant voltage and constant current operation mode (C.C and C.V. automatic conversion)- Multiple protections: over voltage (OVP), open circuit (OCP),over temperature (OTP)- Safe circuit design, high quality key components adopted, the power supply can be used in 24 hours with full load- Intelligent temperature control fan adjusts the speed according to the load situation, effectively reduce noise and prolong the life of fan